* #396 New feature : match download status to files

* UI: Visible Books \> Set 'Downloaded' status automatically. Visible books. Prompts before saving changes
  * CLI: Full library. No prompt

Source/AppScaffolding/AppScaffolding.csproj

@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFramework>net7.0</TargetFramework>
-    <Version>8.5.1.1</Version>
+    <Version>8.6.0.1</Version>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Octokit" Version="4.0.1" />

Source/ApplicationServices/BulkSetDownloadStatus.cs

@@ -0,0 +1,78 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using DataLayer;
+using Dinah.Core;
+using LibationFileManager;
+
+namespace ApplicationServices
+{
+    public class BulkSetDownloadStatus
+    {
+        private List<(string message, LiberatedStatus newStatus, IEnumerable<Book> Books)> actionSets { get; } = new();
+
+        public int Count => actionSets.Count;
+
+        public IEnumerable<string> Messages => actionSets.Select(a => a.message);
+        public string AggregateMessage => $"Are you sure you want to set {Messages.Aggregate((a, b) => $"{a} and {b}")}?";
+
+        private List<LibraryBook> _libraryBooks;
+        private bool _setDownloaded;
+        private bool _setNotDownloaded;
+
+        public BulkSetDownloadStatus(List<LibraryBook> libraryBooks, bool setDownloaded, bool setNotDownloaded)
+        {
+            _libraryBooks = libraryBooks;
+            _setDownloaded = setDownloaded;
+            _setNotDownloaded = setNotDownloaded;
+        }
+
+        public int Discover()
+        {
+            var bookExistsList = _libraryBooks
+                .Select(libraryBook => new
+                {
+                    libraryBook.Book,
+                    FileExists = AudibleFileStorage.Audio.GetPath(libraryBook.Book.AudibleProductId) is not null
+                })
+                .ToList();
+
+            if (_setDownloaded)
+            {
+                var books2change = bookExistsList
+                    .Where(a => a.FileExists && a.Book.UserDefinedItem.BookStatus != LiberatedStatus.Liberated)
+                    .Select(a => a.Book)
+                    .ToList();
+
+                if (books2change.Any())
+                    actionSets.Add((
+                        $"{"book".PluralizeWithCount(books2change.Count)} to 'Downloaded'",
+                        LiberatedStatus.Liberated,
+                        books2change));
+            }
+
+            if (_setNotDownloaded)
+            {
+                var books2change = bookExistsList
+                    .Where(a => !a.FileExists && a.Book.UserDefinedItem.BookStatus != LiberatedStatus.NotLiberated)
+                    .Select(a => a.Book)
+                    .ToList();
+
+                if (books2change.Any())
+                    actionSets.Add((
+                        $"{"book".PluralizeWithCount(books2change.Count)} to 'Not Downloaded'",
+                        LiberatedStatus.NotLiberated,
+                        books2change));
+            }
+
+            return Count;
+        }
+
+        public void Execute()
+        {
+            foreach (var a in actionSets)
+                a.Books.UpdateBookStatus(a.newStatus);
+        }
+    }
+}

Source/ApplicationServices/LibraryCommands.cs

@@ -9,6 +9,7 @@ using Dinah.Core;
 using DtoImporterService;
 using LibationFileManager;
 using Serilog;
+using static System.Reflection.Metadata.BlobBuilder;
 using static DtoImporterService.PerfLogger;
 
 namespace ApplicationServices
@@ -366,74 +367,101 @@ namespace ApplicationServices
 		public static event EventHandler<IEnumerable<Book>> BookUserDefinedItemCommitted;
 
 		#region Update book details
-		public static int UpdateBookStatus(this Book book, LiberatedStatus bookStatus)
+		public static int UpdateUserDefinedItem(
-		{
-			book.UserDefinedItem.BookStatus = bookStatus;
-			return UpdateUserDefinedItem(book);
-		}
-		public static int UpdatePdfStatus(this Book book, LiberatedStatus pdfStatus)
-		{
-			book.UserDefinedItem.PdfStatus = pdfStatus;
-			return UpdateUserDefinedItem(book);
-		}
-		public static int UpdateBook(
 			this Book book,
 			string tags = null,
 			LiberatedStatus? bookStatus = null,
 			LiberatedStatus? pdfStatus = null)
-			=> UpdateBooks(tags, bookStatus, pdfStatus, book);
+			=> new[] { book }.UpdateUserDefinedItem(tags, bookStatus, pdfStatus);
-		public static int UpdateBooks(
+
+		public static int UpdateUserDefinedItem(
+			this IEnumerable<Book> books,
 			string tags = null,
 			LiberatedStatus? bookStatus = null,
-			LiberatedStatus? pdfStatus = null,
+			LiberatedStatus? pdfStatus = null)
-			params Book[] books)
+            => updateUserDefinedItem(
+				books,
+                udi => {
+                    // blank tags are expected. null tags are not
+                    if (tags is not null && udi.Tags != tags)
+                        udi.Tags = tags;
+
+                    if (bookStatus is not null && udi.BookStatus != bookStatus.Value)
+                        udi.BookStatus = bookStatus.Value;
+
+                    // even though PdfStatus is nullable, there's no case where we'd actually overwrite with null
+                    if (pdfStatus is not null && udi.PdfStatus != pdfStatus.Value)
+                        udi.PdfStatus = pdfStatus.Value;
+                });
+
+        public static int UpdateBookStatus(this Book book, LiberatedStatus bookStatus)
+			=> book.UpdateUserDefinedItem(udi => udi.BookStatus = bookStatus);
+        public static int UpdateBookStatus(this IEnumerable<Book> books, LiberatedStatus bookStatus)
+			=> books.UpdateUserDefinedItem(udi => udi.BookStatus = bookStatus);
+        public static int UpdateBookStatus(this LibraryBook libraryBook, LiberatedStatus bookStatus)
+			=> libraryBook.UpdateUserDefinedItem(udi => udi.BookStatus = bookStatus);
+        public static int UpdateBookStatus(this IEnumerable<LibraryBook> libraryBooks, LiberatedStatus bookStatus)
+			=> libraryBooks.UpdateUserDefinedItem(udi => udi.BookStatus = bookStatus);
+
+        public static int UpdatePdfStatus(this Book book, LiberatedStatus pdfStatus)
+			=> book.UpdateUserDefinedItem(udi => udi.PdfStatus = pdfStatus);
+        public static int UpdatePdfStatus(this IEnumerable<Book> books, LiberatedStatus pdfStatus)
+			=> books.UpdateUserDefinedItem(udi => udi.PdfStatus = pdfStatus);
+        public static int UpdatePdfStatus(this LibraryBook libraryBook, LiberatedStatus pdfStatus)
+			=> libraryBook.UpdateUserDefinedItem(udi => udi.PdfStatus = pdfStatus);
+        public static int UpdatePdfStatus(this IEnumerable<LibraryBook> libraryBooks, LiberatedStatus pdfStatus)
+			=> libraryBooks.UpdateUserDefinedItem(udi => udi.PdfStatus = pdfStatus);
+
+        public static int UpdateTags(this Book book, string tags)
+            => book.UpdateUserDefinedItem(udi => udi.Tags = tags);
+        public static int UpdateTags(this IEnumerable<Book> books, string tags)
+            => books.UpdateUserDefinedItem(udi => udi.Tags = tags);
+        public static int UpdateTags(this LibraryBook libraryBook, string tags)
+            => libraryBook.UpdateUserDefinedItem(udi => udi.Tags = tags);
+        public static int UpdateTags(this IEnumerable<LibraryBook> libraryBooks, string tags)
+            => libraryBooks.UpdateUserDefinedItem(udi => udi.Tags = tags);
+
+        public static int UpdateUserDefinedItem(this LibraryBook libraryBook, Action<UserDefinedItem> action)
+			=> libraryBook.Book.updateUserDefinedItem(action);
+        public static int UpdateUserDefinedItem(this IEnumerable<LibraryBook> libraryBooks, Action<UserDefinedItem> action)
+			=> libraryBooks.Select(lb => lb.Book).updateUserDefinedItem(action);
+
+        public static int UpdateUserDefinedItem(this Book book, Action<UserDefinedItem> action) => book.updateUserDefinedItem(action);
+        public static int UpdateUserDefinedItem(this IEnumerable<Book> books, Action<UserDefinedItem> action) => books.updateUserDefinedItem(action);
+
+        private static int updateUserDefinedItem(this Book book, Action<UserDefinedItem> action) => new[] { book }.updateUserDefinedItem(action);
+        private static int updateUserDefinedItem(this IEnumerable<Book> books, Action<UserDefinedItem> action)
         {
-			foreach (var book in books)
+            try
-			{
+            {
-				// blank tags are expected. null tags are not
+                if (books is null || !books.Any())
-				if (tags is not null && book.UserDefinedItem.Tags != tags)
+                    return 0;
-					book.UserDefinedItem.Tags = tags;
 
-				if (bookStatus is not null && book.UserDefinedItem.BookStatus != bookStatus.Value)
-					book.UserDefinedItem.BookStatus = bookStatus.Value;
-
-				// even though PdfStatus is nullable, there's no case where we'd actually overwrite with null
-				if (pdfStatus is not null && book.UserDefinedItem.PdfStatus != pdfStatus.Value)
-					book.UserDefinedItem.PdfStatus = pdfStatus.Value;
-			}
-
-			return UpdateUserDefinedItem(books);
-		}
-		public static int UpdateUserDefinedItem(params Book[] books) => UpdateUserDefinedItem(books.ToList());
-		public static int UpdateUserDefinedItem(IEnumerable<Book> books)
-		{
-			try
-			{
-				if (books is null || !books.Any())
-					return 0;
-
-				using var context = DbContexts.GetContext();
-
-				// Attach() NoTracking entities before SaveChanges()
 				foreach (var book in books)
-					context.Attach(book.UserDefinedItem).State = Microsoft.EntityFrameworkCore.EntityState.Modified;
+                    action?.Invoke(book.UserDefinedItem);
 
-				var qtyChanges = context.SaveChanges();
+                using var context = DbContexts.GetContext();
-				if (qtyChanges > 0)
-					BookUserDefinedItemCommitted?.Invoke(null, books);
 
-				return qtyChanges;
+                // Attach() NoTracking entities before SaveChanges()
-			}
+                foreach (var book in books)
-			catch (Exception ex)
+                    context.Attach(book.UserDefinedItem).State = Microsoft.EntityFrameworkCore.EntityState.Modified;
-			{
-				Log.Logger.Error(ex, $"Error updating {nameof(Book.UserDefinedItem)}");
-				throw;
-			}
-		}
-		#endregion
 
-		// must be here instead of in db layer due to AaxcExists
+                var qtyChanges = context.SaveChanges();
-		public static LiberatedStatus Liberated_Status(Book book)
+                if (qtyChanges > 0)
+                    BookUserDefinedItemCommitted?.Invoke(null, books);
+
+                return qtyChanges;
+            }
+            catch (Exception ex)
+            {
+                Log.Logger.Error(ex, $"Error updating {nameof(Book.UserDefinedItem)}");
+                throw;
+            }
+        }
+        #endregion
+
+        // must be here instead of in db layer due to AaxcExists
+        public static LiberatedStatus Liberated_Status(Book book)
 			=> book.Audio_Exists() ? book.UserDefinedItem.BookStatus
 			: AudibleFileStorage.AaxcExists(book.AudibleProductId) ? LiberatedStatus.PartialDownload
 			: LiberatedStatus.NotLiberated;

Source/LibationAvalonia/Dialogs/BookDetailsDialog.axaml.cs

@@ -50,7 +50,7 @@ namespace LibationAvalonia.Dialogs
 
 		protected override void SaveAndClose()
         {
-            LibraryBook.Book.UpdateBook(NewTags, bookStatus: BookLiberatedStatus, pdfStatus: PdfLiberatedStatus);
+            LibraryBook.Book.UpdateUserDefinedItem(NewTags, bookStatus: BookLiberatedStatus, pdfStatus: PdfLiberatedStatus);
 			base.SaveAndClose();
 		}
 

Source/LibationAvalonia/Dialogs/LiberatedStatusBatchAutoDialog.axaml

@@ -0,0 +1,53 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        mc:Ignorable="d" d:DesignWidth="400" d:DesignHeight="120"
+		xmlns:controls="clr-namespace:LibationAvalonia.Controls"
+        x:Class="LibationAvalonia.Dialogs.LiberatedStatusBatchAutoDialog"
+        Title="Liberated status: Whether the book has been downloaded"
+		MinHeight="100" MaxHeight="165"
+		MinWidth="600" MaxWidth="800"
+		WindowStartupLocation="CenterOwner"
+		Icon="/Assets/libation.ico">
+
+	<Grid RowDefinitions="Auto,Auto,Auto">
+		
+		<StackPanel
+			Grid.Row="0"
+			Orientation="Horizontal">
+
+			<CheckBox
+				Margin="0,0,0,10"
+				IsChecked="{Binding SetDownloaded, Mode=TwoWay}">
+
+				<TextBlock
+					TextWrapping="Wrap"
+					Text="If the audio file can be found, set download status to 'Downloaded'" />
+			</CheckBox>
+		</StackPanel>
+
+		<StackPanel
+			Grid.Row="1"
+			Orientation="Horizontal">
+
+			<CheckBox
+				Margin="0,0,0,10"
+				IsChecked="{Binding SetNotDownloaded, Mode=TwoWay}">
+
+				<TextBlock
+					TextWrapping="Wrap"
+					Text="If the audio file cannot be found, set download status to 'Not Downloaded'" />
+			</CheckBox>
+		</StackPanel>
+		
+		<Button
+			Grid.Row="2"
+			Padding="30,0,30,0"
+			Margin="10,0,10,10"
+			HorizontalAlignment="Right"
+			Height="25"
+			Content="Save"
+			Click="SaveButton_Clicked"/>
+	</Grid>
+</Window>

Source/LibationAvalonia/Dialogs/LiberatedStatusBatchAutoDialog.axaml.cs

@@ -0,0 +1,23 @@
+using Avalonia.Markup.Xaml;
+
+namespace LibationAvalonia.Dialogs
+{
+	public partial class LiberatedStatusBatchAutoDialog : DialogWindow
+    {
+        public bool SetDownloaded { get; set; }
+        public bool SetNotDownloaded { get; set; }
+
+        public LiberatedStatusBatchAutoDialog()
+		{
+			InitializeComponent();
+			DataContext = this;
+		}
+		private void InitializeComponent()
+		{
+			AvaloniaXamlLoader.Load(this);
+		}
+
+		public void SaveButton_Clicked(object sender, Avalonia.Interactivity.RoutedEventArgs e)
+			=> SaveAndClose();
+	}
+}

Source/LibationAvalonia/Dialogs/LiberatedStatusBatchManualDialog.axaml

@@ -4,7 +4,7 @@
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         mc:Ignorable="d" d:DesignWidth="400" d:DesignHeight="120"
 		xmlns:controls="clr-namespace:LibationAvalonia.Controls"
-        x:Class="LibationAvalonia.Dialogs.LiberatedStatusBatchDialog"
+        x:Class="LibationAvalonia.Dialogs.LiberatedStatusBatchManualDialog"
         Title="Liberated status: Whether the book has been downloaded"
 		MinWidth="400" MinHeight="120"
 		MaxWidth="400" MaxHeight="120"

Source/LibationAvalonia/Dialogs/LiberatedStatusBatchManualDialog.axaml.cs

@@ -5,7 +5,7 @@ using System.Collections.Generic;
 
 namespace LibationAvalonia.Dialogs
 {
-	public partial class LiberatedStatusBatchDialog : DialogWindow
+	public partial class LiberatedStatusBatchManualDialog : DialogWindow
 	{
 		private class liberatedComboBoxItem
 		{
@@ -34,7 +34,7 @@ namespace LibationAvalonia.Dialogs
 			new liberatedComboBoxItem { Status = LiberatedStatus.NotLiberated, Text = "Not Downloaded" },
 		};
 
-		public LiberatedStatusBatchDialog()
+		public LiberatedStatusBatchManualDialog()
 		{
 			InitializeComponent();
 			SelectedItem = BookStatuses[0] as liberatedComboBoxItem;

Source/LibationAvalonia/LibationAvalonia.csproj

@@ -92,6 +92,12 @@
   </ItemGroup>
 
   <ItemGroup>
+    <Compile Update="Dialogs\LiberatedStatusBatchAutoDialog.axaml.cs">
+      <DependentUpon>LiberatedStatusBatchAutoDialog.axaml</DependentUpon>
+    </Compile>
+    <Compile Update="Dialogs\LiberatedStatusBatchManualDialog.axaml.cs">
+      <DependentUpon>LiberatedStatusBatchManualDialog.axaml</DependentUpon>
+    </Compile>
     <Compile Update="Views\ProcessBookControl.axaml.cs">
       <DependentUpon>ProcessBookControl.axaml</DependentUpon>
     </Compile>

Source/LibationAvalonia/Views/MainWindow/MainWindow.VisibleBooks.axaml.cs

@@ -1,6 +1,8 @@
 using ApplicationServices;
 using Avalonia.Threading;
 using DataLayer;
+using Dinah.Core;
+using LibationFileManager;
 using System;
 using System.Linq;
 using System.Threading.Tasks;
@@ -57,14 +59,12 @@ namespace LibationAvalonia.Views
 			if (confirmationResult != DialogResult.Yes)
 				return;
 
-			foreach (var libraryBook in visibleLibraryBooks)
+			visibleLibraryBooks.UpdateTags(dialog.NewTags);
-				libraryBook.Book.UserDefinedItem.Tags = dialog.NewTags;
+        }
-			LibraryCommands.UpdateUserDefinedItem(visibleLibraryBooks.Select(lb => lb.Book));
-		}
 
-		public async void setDownloadedToolStripMenuItem_Click(object sender, Avalonia.Interactivity.RoutedEventArgs args)
+		public async void setDownloadedManualToolStripMenuItem_Click(object sender, Avalonia.Interactivity.RoutedEventArgs args)
 		{
-			var dialog = new Dialogs.LiberatedStatusBatchDialog();
+			var dialog = new Dialogs.LiberatedStatusBatchManualDialog();
 			var result = await dialog.ShowDialog<DialogResult>(this);
 			if (result != DialogResult.OK)
 				return;
@@ -81,12 +81,36 @@ namespace LibationAvalonia.Views
 			if (confirmationResult != DialogResult.Yes)
 				return;
 
-			foreach (var libraryBook in visibleLibraryBooks)
+            visibleLibraryBooks.UpdateBookStatus(dialog.BookLiberatedStatus);
-				libraryBook.Book.UserDefinedItem.BookStatus = dialog.BookLiberatedStatus;
+        }
-			LibraryCommands.UpdateUserDefinedItem(visibleLibraryBooks.Select(lb => lb.Book));
-		}
 
-		public async void removeToolStripMenuItem_Click(object sender, Avalonia.Interactivity.RoutedEventArgs args)
+		public async void setDownloadedAutoToolStripMenuItem_Click(object sender, Avalonia.Interactivity.RoutedEventArgs args)
+        {
+            var dialog = new Dialogs.LiberatedStatusBatchAutoDialog();
+            var result = await dialog.ShowDialog<DialogResult>(this);
+            if (result != DialogResult.OK)
+                return;
+
+            var bulkSetStatus = new BulkSetDownloadStatus(_viewModel.ProductsDisplay.GetVisibleBookEntries(), dialog.SetDownloaded, dialog.SetNotDownloaded);
+            var count = await Task.Run(() => bulkSetStatus.Discover());
+
+            if (count == 0)
+                return;
+
+            var confirmationResult = await MessageBox.Show(
+                bulkSetStatus.AggregateMessage,
+                "Replace downloaded status?",
+                MessageBoxButtons.YesNo,
+                MessageBoxIcon.Question,
+                MessageBoxDefaultButton.Button1);
+
+            if (confirmationResult != DialogResult.Yes)
+                return;
+
+            bulkSetStatus.Execute();
+        }
+
+        public async void removeToolStripMenuItem_Click(object sender, Avalonia.Interactivity.RoutedEventArgs args)
 		{
 			var visibleLibraryBooks = _viewModel.ProductsDisplay.GetVisibleBookEntries();
 

Source/LibationAvalonia/Views/MainWindow/MainWindow.axaml

@@ -110,7 +110,8 @@
 						</MenuItem.Styles>
 						<MenuItem Click="liberateVisible" Header="{Binding LiberateVisibleToolStripText_2}" IsEnabled="{Binding AnyVisibleNotLiberated}" />
 						<MenuItem Click="replaceTagsToolStripMenuItem_Click" Header="Replace _Tags..." />
-						<MenuItem Click="setDownloadedToolStripMenuItem_Click" Header="Set '_Downloaded' status..." />
+						<MenuItem Click="setDownloadedManualToolStripMenuItem_Click" Header="Set '_Downloaded' status manually..." />
+						<MenuItem Click="setDownloadedAutoToolStripMenuItem_Click" Header="Set '_Downloaded' status automatically..." />
 						<MenuItem Click="removeToolStripMenuItem_Click" Header="_Remove from library..." />
 					</MenuItem>
 

Source/LibationCli/Options/ExportOptions.cs

@@ -8,7 +8,7 @@ using CommandLine;
 
 namespace LibationCli
 {
-	[Verb("export", HelpText = "Must include path and flag for export file type: --xlsx , --csv , --json]")]
+	[Verb("export", HelpText = "Must include path and flag for export file type: --xlsx , --csv , --json")]
 	public class ExportOptions : OptionsBase
 	{
 		[Option(shortName: 'p', longName: "path", Required = true, HelpText = "Path to save file to.")]

Source/LibationCli/Options/SetDownloadStatusOptions.cs

@@ -0,0 +1,37 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using ApplicationServices;
+using AudibleUtilities;
+using CommandLine;
+
+namespace LibationCli
+{
+    [Verb("set-status", HelpText = """
+        Set download statuses throughout library based on whether each book's audio file can be found. 
+        Must include at least one flag: --downloaded , --not-downloaded. 
+        Downloaded: If the audio file can be found, set download status to 'Downloaded'. 
+        Not Downloaded: If the audio file cannot be found, set download status to 'Not Downloaded'
+        """)]
+    public class SetDownloadStatusOptions : OptionsBase
+    {
+        [Option(shortName: 'd', longName: "downloaded", Required = true)]
+        public bool SetDownloaded { get; set; }
+
+        [Option(shortName: 'n', longName: "not-downloaded", Required = true)]
+        public bool SetNotDownloaded { get; set; }
+
+        protected override async Task ProcessAsync()
+        {
+            var libraryBooks = DbContexts.GetLibrary_Flat_NoTracking();
+
+            var bulkSetStatus = new BulkSetDownloadStatus(libraryBooks, SetDownloaded, SetNotDownloaded);
+            await Task.Run(() => bulkSetStatus.Discover());
+            bulkSetStatus.Execute();
+
+            foreach (var msg in bulkSetStatus.Messages)
+                Console.WriteLine(msg);
+        }
+    }
+}

Source/LibationFileManager/AudibleFileStorage.cs

@@ -113,6 +113,5 @@ namespace LibationFileManager
         public void Refresh() => BookDirectoryFiles.RefreshFiles();
 
         public LongPath GetPath(string productId) => GetFilePath(productId);
-
 	}
 }

Source/LibationWinForms/Dialogs/LiberatedStatusBatchAutoDialog.Designer.cs

@@ -0,0 +1,108 @@
+namespace LibationWinForms.Dialogs
+{
+    partial class LiberatedStatusBatchAutoDialog
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.setDownloadedCb = new System.Windows.Forms.CheckBox();
+            this.setNotDownloadedCb = new System.Windows.Forms.CheckBox();
+            this.okBtn = new System.Windows.Forms.Button();
+            this.cancelBtn = new System.Windows.Forms.Button();
+            this.SuspendLayout();
+            // 
+            // setDownloadedCb
+            // 
+            this.setDownloadedCb.AutoSize = true;
+            this.setDownloadedCb.Location = new System.Drawing.Point(12, 12);
+            this.setDownloadedCb.Name = "setDownloadedCb";
+            this.setDownloadedCb.Size = new System.Drawing.Size(379, 19);
+            this.setDownloadedCb.TabIndex = 0;
+            this.setDownloadedCb.Text = "If the audio file can be found, set download status to \'Downloaded\'";
+            this.setDownloadedCb.UseVisualStyleBackColor = true;
+            // 
+            // setNotDownloadedCb
+            // 
+            this.setNotDownloadedCb.AutoSize = true;
+            this.setNotDownloadedCb.Location = new System.Drawing.Point(12, 37);
+            this.setNotDownloadedCb.Name = "setNotDownloadedCb";
+            this.setNotDownloadedCb.Size = new System.Drawing.Size(412, 19);
+            this.setNotDownloadedCb.TabIndex = 1;
+            this.setNotDownloadedCb.Text = "If the audio file cannot be found, set download status to \'Not Downloaded\'";
+            this.setNotDownloadedCb.UseVisualStyleBackColor = true;
+            // 
+            // okBtn
+            // 
+            this.okBtn.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
+            this.okBtn.Location = new System.Drawing.Point(346, 79);
+            this.okBtn.Name = "okBtn";
+            this.okBtn.Size = new System.Drawing.Size(88, 27);
+            this.okBtn.TabIndex = 2;
+            this.okBtn.Text = "OK";
+            this.okBtn.UseVisualStyleBackColor = true;
+            this.okBtn.Click += new System.EventHandler(this.okBtn_Click);
+            // 
+            // cancelBtn
+            // 
+            this.cancelBtn.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
+            this.cancelBtn.Location = new System.Drawing.Point(464, 79);
+            this.cancelBtn.Name = "cancelBtn";
+            this.cancelBtn.Size = new System.Drawing.Size(88, 27);
+            this.cancelBtn.TabIndex = 3;
+            this.cancelBtn.Text = "Cancel";
+            this.cancelBtn.UseVisualStyleBackColor = true;
+            // 
+            // LiberatedStatusBatchAutoDialog
+            // 
+            this.AcceptButton = this.okBtn;
+            this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.CancelButton = this.cancelBtn;
+            this.ClientSize = new System.Drawing.Size(564, 118);
+            this.Controls.Add(this.cancelBtn);
+            this.Controls.Add(this.okBtn);
+            this.Controls.Add(this.setNotDownloadedCb);
+            this.Controls.Add(this.setDownloadedCb);
+            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
+            this.MaximizeBox = false;
+            this.MinimizeBox = false;
+            this.Name = "LiberatedStatusBatchAutoDialog";
+            this.ShowInTaskbar = false;
+            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
+            this.Text = "Liberated status: Scan for files";
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.CheckBox setDownloadedCb;
+        private System.Windows.Forms.CheckBox setNotDownloadedCb;
+        private System.Windows.Forms.Button okBtn;
+        private System.Windows.Forms.Button cancelBtn;
+    }
+}

Source/LibationWinForms/Dialogs/LiberatedStatusBatchAutoDialog.cs

@@ -0,0 +1,25 @@
+using System;
+using System.Windows.Forms;
+
+namespace LibationWinForms.Dialogs
+{
+    public partial class LiberatedStatusBatchAutoDialog : Form
+    {
+        public bool SetDownloaded { get; private set; }
+        public bool SetNotDownloaded { get; private set; }
+
+        public LiberatedStatusBatchAutoDialog()
+        {
+            InitializeComponent();
+            this.SetLibationIcon();
+        }
+
+        private void okBtn_Click(object sender, EventArgs e)
+        {
+            SetDownloaded = this.setDownloadedCb.Checked;
+            SetNotDownloaded = this.setNotDownloadedCb.Checked;
+
+            this.DialogResult = DialogResult.OK;
+        }
+    }
+}

Source/LibationWinForms/Dialogs/LiberatedStatusBatchManualDialog.Designer.cs

@@ -1,6 +1,6 @@
 namespace LibationWinForms.Dialogs
 {
-    partial class LiberatedStatusBatchDialog
+    partial class LiberatedStatusBatchManualDialog
     {
         /// <summary>
         /// Required designer variable.
@@ -72,7 +72,6 @@
             this.cancelBtn.TabIndex = 9;
             this.cancelBtn.Text = "Cancel";
             this.cancelBtn.UseVisualStyleBackColor = true;
-            this.cancelBtn.Click += new System.EventHandler(this.cancelBtn_Click);
             // 
             // saveBtn
             // 
@@ -86,7 +85,7 @@
             this.saveBtn.UseVisualStyleBackColor = true;
             this.saveBtn.Click += new System.EventHandler(this.saveBtn_Click);
             // 
-            // LiberatedStatusBatchDialog
+            // LiberatedStatusBatchManualDialog
             // 
             this.AcceptButton = this.saveBtn;
             this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
@@ -101,7 +100,7 @@
             this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
             this.MaximizeBox = false;
             this.MinimizeBox = false;
-            this.Name = "LiberatedStatusBatchDialog";
+            this.Name = "LiberatedStatusBatchManualDialog";
             this.ShowInTaskbar = false;
             this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
             this.Text = "Liberated status: Whether the book has been downloaded";

Source/LibationWinForms/Dialogs/LiberatedStatusBatchManualDialog.cs

@@ -8,7 +8,7 @@ using LibationFileManager;
 
 namespace LibationWinForms.Dialogs
 {
-    public partial class LiberatedStatusBatchDialog : Form
+    public partial class LiberatedStatusBatchManualDialog : Form
     {
         public LiberatedStatus BookLiberatedStatus { get; private set; }
 
@@ -19,7 +19,7 @@ namespace LibationWinForms.Dialogs
             public override string ToString() => Text;
         }
 
-        public LiberatedStatusBatchDialog()
+        public LiberatedStatusBatchManualDialog()
         {
             InitializeComponent();
             this.SetLibationIcon();
@@ -35,11 +35,5 @@ namespace LibationWinForms.Dialogs
             BookLiberatedStatus = ((liberatedComboBoxItem)this.bookLiberatedCb.SelectedItem).Status;
             this.DialogResult = DialogResult.OK;
         }
-
-        private void cancelBtn_Click(object sender, EventArgs e)
-        {
-            this.DialogResult = DialogResult.Cancel;
-            this.Close();
-        }
     }
 }

Source/LibationWinForms/Dialogs/LiberatedStatusBatchManualDialog.resx

@@ -0,0 +1,60 @@
+<root>
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Source/LibationWinForms/Form1.VisibleBooks.cs

@@ -87,14 +87,12 @@ namespace LibationWinForms
 			if (confirmationResult != DialogResult.Yes)
 				return;
 
-			foreach (var libraryBook in visibleLibraryBooks)
+            visibleLibraryBooks.UpdateTags(dialog.NewTags);
-				libraryBook.Book.UserDefinedItem.Tags = dialog.NewTags;
+        }
-			LibraryCommands.UpdateUserDefinedItem(visibleLibraryBooks.Select(lb => lb.Book));
-		}
 
-		private void setDownloadedToolStripMenuItem_Click(object sender, EventArgs e)
+		private void setDownloadedManualToolStripMenuItem_Click(object sender, EventArgs e)
 		{
-			var dialog = new LiberatedStatusBatchDialog();
+			var dialog = new LiberatedStatusBatchManualDialog();
 			var result = dialog.ShowDialog();
 			if (result != DialogResult.OK)
 				return;
@@ -110,12 +108,36 @@ namespace LibationWinForms
 			if (confirmationResult != DialogResult.Yes)
 				return;
 
-			foreach (var libraryBook in visibleLibraryBooks)
+			visibleLibraryBooks.UpdateBookStatus(dialog.BookLiberatedStatus);
-				libraryBook.Book.UserDefinedItem.BookStatus = dialog.BookLiberatedStatus;
+        }
-			LibraryCommands.UpdateUserDefinedItem(visibleLibraryBooks.Select(lb => lb.Book));
-		}
 
-		private async void removeToolStripMenuItem_Click(object sender, EventArgs e)
+        private async void setDownloadedAutoToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            var dialog = new LiberatedStatusBatchAutoDialog();
+            var result = dialog.ShowDialog();
+            if (result != DialogResult.OK)
+                return;
+
+            var bulkSetStatus = new BulkSetDownloadStatus(productsDisplay.GetVisible(), dialog.SetDownloaded, dialog.SetNotDownloaded);
+            var count = await Task.Run(() => bulkSetStatus.Discover());
+
+			if (count == 0)
+				return;
+
+            var confirmationResult = MessageBox.Show(
+                bulkSetStatus.AggregateMessage,
+                "Replace downloaded status?",
+                MessageBoxButtons.YesNo,
+                MessageBoxIcon.Question,
+                MessageBoxDefaultButton.Button1);
+
+            if (confirmationResult != DialogResult.Yes)
+                return;
+
+            bulkSetStatus.Execute();
+        }
+
+        private async void removeToolStripMenuItem_Click(object sender, EventArgs e)
 		{
 			var visibleLibraryBooks = productsDisplay.GetVisible();
 

Source/LibationWinForms/GridView/LibraryBookEntry.cs

@@ -128,7 +128,7 @@ namespace LibationWinForms.GridView
 		/// <summary>Save edits to the database</summary>
 		public void Commit(string newTags, LiberatedStatus bookStatus, LiberatedStatus? pdfStatus)
 			// MVVM pass-through
-			=> Book.UpdateBook(newTags, bookStatus: bookStatus, pdfStatus: pdfStatus);
+			=> Book.UpdateUserDefinedItem(newTags, bookStatus: bookStatus, pdfStatus: pdfStatus);
 
 		#endregion